Fallacious and Unsubstantial

Fallacious

Fallacious adjective - Not using or following good reasoning.

Unsubstantial and fallacious are semantically related in ineffectual topic. In some cases you can use "Unsubstantial" instead an adjective "Fallacious".

Unsubstantial

Unsubstantial adjective - Not composed of matter.

Fallacious and unsubstantial are semantically related in ineffectual topic. Sometimes you can use "Fallacious" instead an adjective "Unsubstantial".

Nearby Word: unsubstantially
Cite this Source
Unsubstantial and Fallacious. (2016). Retrieved 2026, August 15, from https://thesaurus.plus/related/fallacious/unsubstantial
Fallacious & Unsubstantial. N.p., 2016. Web. 15 Aug. 2026. <https://thesaurus.plus/related/fallacious/unsubstantial>.
Unsubstantial or Fallacious. 2016. Accessed August 15, 2026. https://thesaurus.plus/related/fallacious/unsubstantial.
Google Ngram Viewer shows how "fallacious" and "unsubstantial" have occurred on timeline